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Solar UV Irradiance in a Changing Climate: Trends in Europe and the Significance of Spectral Monitoring in Italy

dc.contributorLaschewski, Gudrun
dc.contributorFilippa, Gianluca
dc.contributorArola, Antti
dc.contributorBais, Alkiviadis F.
dc.contributorDe Backer, Hugo
dc.contributorLakkala, Kaisa
dc.contributorWebb, Ann R.
dc.contributorDe Bock, Veerle
dc.contributorKarppinen, Tomi
dc.contributorGarane, Katerina
dc.contributorKapsomenakis, John
dc.contributorKoukouli, Maria-Elissavet
dc.contributorZerefos, Christos S.
dc.contributor.authorFountoulakis, Ilias
dc.contributor.authorDiémoz, Henri
dc.contributor.authorSiani, Anna-Maria
dc.contributor.authorLaschewski, Gudrun
dc.contributor.authorFilippa, Gianluca
dc.contributor.authorArola, Antti
dc.contributor.authorBais, Alkiviadis F.
dc.contributor.authorDe Backer, Hugo
dc.contributor.authorLakkala, Kaisa
dc.contributor.authorWebb, Ann, R.
dc.contributor.authorDe Bock, Veerle
dc.contributor.authorKarppinen, Tomi
dc.contributor.authorGarane, Katerina
dc.contributor.authorKapsomenakis, John
dc.contributor.authorKoukouli, Maria-Elissavet
dc.contributor.authorZerefos, Christos S.
dc.coverage.spatialEuropeen_US
dc.coverage.temporal1996-2017en_US
dc.date2019-12-18
dc.date.accessioned2022-02-16T15:11:57Z
dc.date.available2022-02-16T15:11:57Z
dc.identifier.citationFountoulakis, I.; Diémoz, H.; Siani, A.-M.; Laschewski, G.; Filippa, G.; Arola, A.; Bais, A.F.; De Backer, H.; Lakkala, K.; Webb, A.R.; De Bock, V.; Karppinen, T.; Garane, K.; Kapsomenakis, J.; Koukouli, M.-E.; Zerefos, C.S. Solar UV Irradiance in a Changing Climate: Trends in Europe and the Significance of Spectral Monitoring in Italy. Environments 2020, 7, 1.en_US
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/9799
dc.descriptionReview of the existing bibliography shows that the direction and magnitude of the long-term trends of UV irradiance, and their main drivers, vary significantly throughout Europe. Analysis of total ozone and spectral UV data recorded at four European stations during 1996–2017 reveals that long-term changes in UV are mainly driven by changes in aerosols, cloudiness, and surface albedo, while changes in total ozone play a less significant role. The variability of UV irradiance is large throughout Italy due to the complex topography and large latitudinal extension of the country. Analysis of the spectral UV records of the urban site of Rome, and the alpine site of Aosta reveals that differences between the two sites follow the annual cycle of the differences in cloudiness and surface albedo. Comparisons between the noon UV index measured at the ground at the same stations and the corresponding estimates from the Deutscher Wetterdienst (DWD) forecast model and the ozone monitoring instrument (OMI)/Aura observations reveal differences of up to 6 units between individual measurements, which are likely due to the different spatial resolution of the different datasets, and average differences of 0.5–1 unit, possibly related to the use of climatological surface albedo and aerosol optical properties in the retrieval algorithms.en_US
dc.languageengen_US
dc.publisherMDPIen_US
dc.titleSolar UV Irradiance in a Changing Climate: Trends in Europe and the Significance of Spectral Monitoring in Italyen_US
dc.typeArticleen_US
dc.subject.frascatiEarth and related Environmental sciencesen_US
dc.audienceScientificen_US
dc.subject.freeUV radiationen_US
Orfeo.peerreviewedYesen_US
dc.identifier.doi10.3390/environments7010001


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